Connecting people to `can't get there from here' parks - The Boston Globe: "In a heat wave, green space sure looks appealing. But what if you can't find it? Allston/Brighton has 40 percent less public green space than the average Boston neighborhood, said Heather Knopsnyder of that neighborhood's community development corporation. Worse, existing parks go underused. ``People just don't know where things are and how to get to them,' she said."